Fix chunk index error in auto_merge_chunks #3057
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hekaisheng
added
mod: dataframe
to be backported
wjsi
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to wjsi/mars
that referenced
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May 23, 2022
wjsi
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that referenced
this pull request
May 23, 2022
Co-authored-by: yuyiming <[email protected]>
wjsi
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backported already
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What do these changes do?
if a single chunk remains to merge in auto_merge_chunks, current code tries not to create a new concat OP and just use the last chunk. But the index of last chunk should be changed after merging.
This PR fixes this issue.
Related issue number
Fixes #3056
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